ذَٰلِكَ بِأَنَّهُمْ ءَامَنُوا۟ ثُمَّ كَفَرُوا۟ فَطُبِعَ عَلَىٰ قُلُوبِهِمْ فَهُمْ لَا يَفْقَهُونَ
English Translation
That is because they believed, and then they disbelieved; so their hearts were sealed over, and they do not understand.
English Transliteration
Thalika biannahum amanoo thumma kafaroo fatubiAAa AAala quloobihim fahum la yafqahoona
Tafsir of Verse 3
That is because they have believed, then they have disbelieved; therefore a seal has been set on their hearts, and they do not understand.
That is because they believed, then they rejected Faith: So a seal was set on their hearts: therefore they understand not.